Fix a couple of minor issues in dynamic-import tests

[v8-test262-automation] Updated curation log with latest revision sha's from export and changed files.
    sourceRevisionAtLastExport: f09bec92 targetRevisionAtLastExport: bb9647dd

[v8-test262-automation] Changes from https://github.com/v8/v8.git at sha f09bec92 on Mon Nov 26 2018 19:06:59 GMT+0000 (Coordinated Universal Time)

[javascriptcore-test262-automation] Updated curation log with latest revision sha's from export and changed files.
    sourceRevisionAtLastExport: 743b57501b targetRevisionAtLastExport: 5ccad796

[javascriptcore-test262-automation] Changes from https://github.com/webkit/webkit.git at sha 743b57501b on Mon Nov 26 2018 19:04:04 GMT+0000 (Coordinated Universal Time)

- `Proxy/getOwnPropertyDescriptor/call-parameters.js`
  Fixes a call to `Object.getOwnPropertyDescriptor` without the prop
  param. Not actually a huge problem, as the test wasn't depending on
  it.

- `Proxy/getOwnPropertyDescriptor/result-type-is-not-object-nor-undefined`
  This test asserted that `function() {}` should throw with the
  following spec step, which is incorrect, as functions are typed as
  `Object` in the spec.
  """
  1. If Type(trapResultObj) is neither Object nor Undefined, throw a
    TypeError exception.
  """

Import test changes from V8

Merge pull request #1961 from test262-automation/javascriptcore-test262-automation-export-89489cb6f5

Import test changes from JavaScriptCore

harness: make $262.agent.waitUntil check if a typed array can be shared before proceeding.

Migrating all tests to this API is necessary to prevent tests from hanging indefinitely when a SAB is sent to a worker but the code in the worker attempts to create a non-sharable TypedArray (something that is not Int32Array or BigInt64Array). When that scenario occurs, an exception is thrown and the agent worker can no longer communicate with any other threads that control the SAB. If the main thread happens to be spinning in the $262.agent.waitUntil() while loop, it will never meet its termination condition and the test will hang indefinitely.

Because we've defined $262.agent.broadcast(SAB) in https://github.com/tc39/test262/blob/master/INTERPRETING.md, there are host implementations that assume compatibility, which must be maintained.

Migrating all tests to this API is necessary to prevent tests from hanging indefinitely when a SAB is sent to a worker but the code in the worker attempts to create a non-sharable TypedArray (something that is not Int32Array or BigInt64Array). When that scenario occurs, an exception is thrown and the agent worker can no longer communicate with any other threads that control the SAB. If the main thread happens to be spinning in the $262.agent.waitUntil() while loop, it will never meet its termination condition and the test will hang indefinitely.

Because we've defined $262.agent.broadcast(SAB) in https://github.com/tc39/test262/blob/master/INTERPRETING.md, there are host implementations that assume compatibility, which must be maintained.

[v8-test262-automation] Updated curation log with latest revision sha's from export and changed files.
    sourceRevisionAtLastExport: 3a8c8082 targetRevisionAtLastExport: 9166165df7

[v8-test262-automation] Changes from https://github.com/v8/v8.git at sha 3a8c8082 on Fri Nov 16 2018 19:00:23 GMT+0000 (Coordinated Universal Time)

[javascriptcore-test262-automation] Updated curation log with latest revision sha's from export and changed files.
    sourceRevisionAtLastExport: 0cfa6086eb targetRevisionAtLastExport: 89489cb6f5

[javascriptcore-test262-automation] Changes from https://github.com/webkit/webkit.git at sha 0cfa6086eb on Fri Nov 16 2018 18:57:37 GMT+0000 (Coordinated Universal Time)

[v8-test262-automation] Updated curation log with latest revision sha's from export and changed files.
    sourceRevisionAtLastExport: ac250b9b targetRevisionAtLastExport: 6218e682b2

[v8-test262-automation] Changes from https://github.com/v8/v8.git at sha ac250b9b on Wed Nov 14 2018 18:59:57 GMT+0000 (Coordinated Universal Time)

[javascriptcore-test262-automation] Updated curation log with latest revision sha's from export and changed files.
    sourceRevisionAtLastExport: 38e0e5eed1 targetRevisionAtLastExport: 33df80e9ad

[javascriptcore-test262-automation] Changes from https://github.com/webkit/webkit.git at sha 38e0e5eed1 on Wed Nov 14 2018 18:57:07 GMT+0000 (Coordinated Universal Time)

Update generated tests